Sash-cord guide



(No Model.) I 2 Sheets-Sheet 1. W. G. SHEDD. S ASH CORD GUIDE.

No. 410,741. Patented Sept. 10, 1889.

N. PETERS Phalmlilbographcr. Wlshingwm D C.

(No Model.) 2 Sheets-Sheet 2.

W. G. SHEDD.

BASH 001w GUIDE.

No. 410,741. Patented Sept. 10, 1889.

Fig: J-

N- FEYERS, Phnln-Lilhognpher, Washingttm, D. C.

UNITED STATES PATENT OFFICE.

\VIL'LIAM G. SHEDD, OF LEADVILLE, COLORADO.

SASH-CORD GUIDE.

SPECIFICATION forming part of Letters Patent No. 410,741, datedSeptember 10, 1889.

Application filed January 28, 1889. Serial No. 297,754. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM G. SHEDD, a citizen of the United States,residing at Leadville, in the county of Lake and State of 0010- rado,have invented a certain new and useful Improvement in Cases forSash-Pulleys, of which the following is a specification, reference beinghad to the accompanying drawings.

My inventionrelates to cases for sash-pulleys, and is designed tosimplify and cheapen the manufacture of such cases and to produce adurable sash-pulley case of sheet metal.

My invention consists in the construction and arrangement of the casefor sash-pulleys described in this specification, and more particularlypointed out in the claims.

In the drawings, Figure 1 is a perspective view of my case inclosing apulley-wheel. Fig. 2 shows a side elevation of the same with a portionof one wing cut away. Fig. 3 is an end elevation of the same. Fig. 4represents the form of blank for my case as stamped from sheet metal,the dotted straight lines showing where the blank is folded or bent overin forming the case; and Fig. 5 represents an area of sheet metal,showing in broken lines a series of hexagonal figures, on one of whichFig. 4 is outlined without repeating the letters of reference, thusillustrating the manner in which the blanks represented by Fig. 4 can beout. Amodified but less desirable form of blank is also outlined 011another of the hexagonal figures shown in Fig. 5, also without lettersof reference, as such modified form of blank is so nearly similar tothat shown in Fig. 4 as to be readily understood by the letters ofreference shown on Fig. I.

The general outline of the blank from which the pulleycase is formed isthat of a flattened hexagon, and, as shown by the broken lines in Fig.5, such blanks can be cut with little or no waste between the blanksfrom a sheet-metal plate. The triangular pieces a: in Fig. 5 are,however, preferably cut away from the form of blank illustrated by Fig.4, to admit of making a broader surface on the face of the eyelets A toallow an easier insertion of the casein the frame in which the sashmoves, and to give a neater appearance to the case than would bepossible were such triangular pieces not removed.

The blank consists, essentially, of the wings A, having slots a andjournal-bearings a, and theface areas A, terminating in the eyelets Awhich eyelets should be finished with bevel-sockets, in which to insertordinary screws in securing the case to the frame inclosing the sash,and the T parting-strips a, with extensions a cut from the recesses a,as shown in the drawings. To insure a neat joint in folding over,especially where the case is made from heavy sheet metal, the wings Ashould preferably be slightly out, as shown at the points marked a Theblank thus stamped, pressed, or struck out is bent on the dottedstraight lines shown in Fig. 4 into the form shown in Fig. 1. The twowings A of the folded blank support the pulley-wheel B in the bearingsa, and the T- strips a being bent down form parting-strips,

their extensions a being inserted in the slots.

a such parting-strips to be preferably bent back at points marked a andslightly curved, as shown in Figs. 1 and 2, to admit of the case for agiven diameter of pulley-wheel being made from a smaller piece of sheetmetal, and through a shorter opening in its face, in which thepulley-wheel revolves, to allow of a greater length in the turned-downareas (W, to give proper strength to the case, and at the same time givea proper clearance to the sash cord, chain, or tape thanwould bepossible were the parting-strips a bent down perpendicular to the faceareas A without being slightly curved.

If desired, the extensions a may be riveted down to prevent the wings Afrom spreading, though I do not consider it-necessary to do so,especially as by making a close or tight fit the extensions 0/ will bequite firmly held by the slots Without riveting. In fact, the extensionsa and the slots a may be omitted; but I prefer to use them, especiallyas they help to stiffen the case through one part supporting anotherpart, particularly if the extensions ofi are riveted down.

The sash-pulley case, as illustrated in Figs. 1, 2, and 3, isrepresented as inclosing a grooved pulley-wheel B, with solid hub oraxis projecting through the journal-bearings (0. Such journal-bearingsmay be made broader than the thickness of the sheet metal in the casebymaking the perforations smaller and turning dowh a narrow rim, asindicated by dotted circles at a either without cutting the metal insuch rim or after making a series of cuts in it, as shown at a"; and incase the metal is so turned down at the journalbearings it should beturned down so as to project toward the inside of the case, so that theproject-ions may not interfere with neatly inserting the sash-pulleycomplete in a mortise with straight sides in the frame iuclosing thesash.

Should it be deemed best, the pulley-wheel can be mounted to run looseon an axle riveted in place in the wings of the case through suitableperforations therein in lieu of the journal-bearings at the pointsmarked a in the drawings.

The pulley-wheel for my sash-pulley case can of course be made at therim witha groove for a cord, with projections to engage with or in thelinks of a chain, or fiat to receive a metallic tape wound upon it or toconduct a metallic tape passing over it.

The eyelets of my sash-pulley case should preferably be made so thattheir outer edges on the sides will be flush with the outside surface ofthe wings after such wings are bent down in place against the edges ofthe parting-strips, as by such construction of the eyelets at theirouter edges they can he neatly countersunk in the frame in which thesash moves through the use of the same bit or anger used in making themortise for the main body of the sash-pulley complete.

On account of the small area exposed to view in the upper surface of theeyelets and of the adjoining face areas along with the upper edges ofthe wings when the wings are bent down in my sash-pulley case whenseated in place, such exposed area can be very cheaply polished orplated, if desired. The shortened opening in the face of the case,through which the pulley-wheel projects, also adds to its neatappearance.

The advantages of my sash-pulley case are obvious, giving economy in theuse of materials and combining strength and rigidity with lightness, andbeing quickly stamped, pressed, or struck from sheet metal, and easilyformed, they should be much more cheaply made than the almostexclusively used castmetal sash-pulley cases, as the latter, to haverequisite strength, coupled with the dilfieulty of making lightcastings, are necessarily considerably heavier, and the cost of suchsmall castings is considerably more than the cost of sheet metal.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

A case for sash-pulleys stamped, pressed, or struck from sheet metal andhaving wings provided with bearings for the pulley'wheel axis, orperforations in which to rivet the pulley-wheel axle, slots, andparting-strips having extensions which enter the slots in the wings, andface areas terminating in eyelets for securing the case to the frame inwhich the sash moves, substantially as shown.

\VILLTA G. SIIEDD.

Attcst:

CHARLES B. SIIEDD, EnNns'r J. Foonn.

